[Swift-devel] Re: swift+glite

[Stuart Martin]

Are you going through gram for this?  How will you get the delegated  
user proxy on the worker node without a shared FS?  You'll need to get  
that in order to do gridftp client commands on the worker node.

On Sep 10, 2008, at Sep 10, 10:20 AM, Ben Clifford wrote:

>
> On Wed, 10 Sep 2008, Michael Wilde wrote:
>
>> Please post info on what is needed in IO changes. I think this fits  
>> in with
>> generalizing and improving the performance of the Swift IO strategy  
>> for other
>> environments as well.
>
>> What is the data transfer strategy when there is no cluster file  
>> system? Does
>> the compute node need to pull data down as a gridftp client?
>
> That's what I'm trying to do at the moment, using a site-local ftp  
> server
> (that apparently doesn't share fs with the compute nodes).
>
> That seems relatively straightforward.
>
> There's a separate problem with no-shared-fs in that the wrapper  
> script is
> also placed there prior to execution on the worker nodes, so a  
> different
> mechanism for bootstrapping that on a worker node is necessary.
>
> At the moment, I'm concentrating specifically on glite-specific
> mechanisms, not making a higher abstraction.
>
> -- 
>
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